Pobation



May 6 1924; 1,493,286

C. SCHALLER CALCULATING MACHINE Filed Aug. 1o'. 192e (gf/@wy MWI/69K,

Patented May 6, 1924.

UNITED STATES PATENT OFFICE.

CARL SCHALLER, OF BRUNSWICK, GERMANY, .ASSIGNOR TO @RTVE KOMMANDIT-GESELLSCHAFT AUF AKTIEN, OF BR-TJNS/Tfl lIE', NATALS CO., GERMANY, A. COR- Application led August 10, 1920.

Serial N'O. 402,734.

(GRANTED UNDER THE PROVISIONS 0F THE .AGT 0F MARCH 3, 1921, 41 STAT. 1313.)

To all whom t may concern y Be it known that l, CARL SGHALLER, a citizen of the Republic of Germany, residing at Brunswick, Germany, have invented certain new and useful Improvements in Calculating' Machines (for which l have filed applications for patents in Germany, March 8, 1917, patent granted February 2, 1918, No. 304,827; in Austria, February 7, 1918, patent granted December' 15, 1919, No. 80,- 301; in Hungary, February 12, 1918, patent granted January 4, 1919, lio. 74,223; in Switzerland, February 12, 1918, patent granted May 31, 1918` No. 78,561; in Sweden. February 8, 1918, patent granted May 15, 1919, No. 45,455; in Czechoslovakia, February 14/17, 1920, patents granted July 15, 1920 and July 25, 1921, No. 2,718 and No. 6,337 g in France, July 9, 1920, patent granted February 4, 1921, No. 520,009; in England, July 8, 1920, patent granted July 21, 1921, No. 147,763; in Italy, June 30, 1920, patent granted @ctober 1, 1921, Nos. 531 24- 186,988; and in Poland, June 26, 1920), of

which the following is a specification.

My invention relates to improvements in calculating machines, andmore particularly in calculating machines of the class shown in the patents of the United States No. 1,109,471, issued Sept. 1, 1914 and No. 1,220,- 009, issued Mar. 20, 1916, in which machines the setting mechanism is provided with setting members adapted to be shifted in a direction parallel to the axis carrying the setting disks. The object of the improvements is to provide simple mechanism intermediate the means for setting said setting members with operating keys therefor.

In order that my invention be more' clearly understood an example embodying the same has been shown in the accompanying drawing, in which the same reference characters have been used in all the views to indicate corresponding parts. In said draw- 111g,

Fig. 1, is a partial side view of the mechanism,

Fig. 2, is a similar side view of a part of Fig. 1 showing one of the keys indepressed position,

Fig. 3, is a detail sectional view, Fig. 4, is a section similar to Fig. 3 showing a key in depressed position, and

Fig. 5, is a partial plan view of the cam slide. :f

Referring to the example shown in the iigures, each of the setting disks cooperates with setting members 10 connected with upright rods 7 forming parts of rockable frames consisting of the said rods 7 and similar upright rods 2 rigidly connected with each other by longitudinal horizontal bars 3 and having rocking supports on a horizontal shaft 141. The upright rods 2 are guided with their upper ends in a cam slot 4 formed in a longitudinally shiftahle bar 5, which slot consists of two branches displaced from each other transversely of the bar o and connected by an angular' portion, as is shown in Fig. 5. lVhen the rods 2 engage in one of the said branches the frames 7, 3, 2 are in suoli positions, that the setting members 10 areA inoperative, and when they engaffe in the other branch the members 10 are inoperative positions. rlherefore, by shifting the bar 5 more or less different values are transmitted to the setting mechanism.

For shifting the slide bar the following mechanism is provided: rlhe bar 5 is connected with a bar 6 consisting of a vertical web and a horizontal flange and normally retracted in the direction of the arrow m by a spring 8. The web portion of the bar is provided with a lug 9 which isnornially engaged by a lug 11 formed on a plate 13 having a rocking support on a shaft 16 and normally held in locking position by a spring 17. The web portion of the bar 6 is formed with lugs 12 one for each of the keys 1, and the said lugs are disposed diiferent distances away from the stems 18 of the cooperating keys 1, the distances corresponding to the values represented by the keys. The stems 18 carry pins 14 which are located in the normal position of the slide bar 6 above slots 15 formed in the flange portion of the said bar. When depressing one of the keys 1 the pin 14 thereof passes through the slot 15 located below the same and into position for engagement with the cooperating lug 12, and furthermore the lower end of the stem strikes on the plate 13 and rocks the same downwards, so that the lug 11 releases the lug 9 and allows the slide 5, 6 to be pulled forwards and in the stood, that the depressed key is locked, be-

cause by the displacement of the slide bar 6 the slot 15 has been shifted out of its normal position in line with the nose 14, so that a solid part of the bar 6 is now above the said nose. For the same reason none of the other keys can be depressed, the slot 15 Which before permitted the passage of the nose 14 having been shifted. Any suitable means vmay be provided for returning the keys into normal positionl For example, the' slide bars are provided each With a lug 19 adapted to be enga-ged by a transverse rocker 20 common to the lugs vof all the columns and adapted to be operated either by hand or from the machine crank. When returning the slides 6 into initial position the keys are pushed upwards by their springs 21.

` While in describing the invention reference has been made toa machine of a particular construction, I Wish it to be understood that my invention is not limited to the use of the mechanism in combination with. the machine shown in the drawing.

I claim: 4

1. In a calculatingmachine, the combination with the value setting mechanism, of means for determining the value setting movement of said mechanism, a plurality of cam members each having a cam slot, a plurality of operating members controlling the movement of leach of said cam members, and a rocking frame controlled by said cam slots for transmitting to said determining means a movement proportional to the movement of said cam members.

2. In a calculating machine, the combination With the value setting mechanism of means for determining the value setting movement of said mechanism, a plurality of cam members, a plurality of operating members controlling the movement of each cam member, rocking means for said cam members adapted to be set in releasing position by said operating members, and transmit ting means controlled by said cam members for transmitting to said determining means a movement proportional to the movement of said cam members.

3. In a calculating machine, the combination -With the value setting mechanism of means for determining the value setting movement'of said mechanism, a plurality of automatically actuated cam members, a plurality of operating members controlling the movement of each cam member, locking means for said cam members adapted to be set in releasing position by said operating members, and transmitting means controlled by said cam members for transmitting to said determining means a movement proportional to the movement of said cam members.

4. Ina calculating machine, the combination with the value setting mechanism, of means for determining the value setting movement of said mechanism, a plurality of slides having cam slots, and operating members therefor, and transmitting means controlled by said cam slots for transmitting to said determining means a movement proportional to the movement of said slides.

In testimony whereof I have affixed my signature in presence of tWo Witnesses.

CARL SCI-IALLER.

Nitnessesz RUDOLPH MAPER, KURT I-IARTUNG. 

